Scared of ectopic pregnancy.

Ashley
Of course I'm in college studying to be a medical assistant/ nurse so I'm worried.. 
I have sharp pain in my lower abdomen right side. It's not persistent. And it's light pain. I had it once in my left side. Not sure what to think. Could it be ligaments? I had a baby at 22 weeks 2 months ago. I don't know if that could mean anything.